6.1 cam in a 5.7

[mcat]

i will run a 6.1 intake...is the swap worth the effort? motor is on a stand, and i have a 4 position timing set. i plan to adv.4*. i have new 6.1 push rods and 6.1 springs. also this is an MDS 5.7 i will plug the solenoids, do i need 6.1 lifters?
thanks

 

[72BBSwinger]

Yes

 

[Aj408]

Have you thought about aftermarket valve springs?

Aj

 

[blackace]

There are way better cams out there for 5.7's. You don't need to plug the MDS solenoids, you can leave them there. They aren't gonna hurt anything if you leave them in. You also need new cradles for the 6.1 lifters, the 5.7 cradles won't fit on the 6.1 lifters.

You don't need aftermarket springs. If I remember correctly 6.1 springs can handle up to .575 of lift, or somewhere close to that. 6.1 springs are cheap.